Genedx Holdings Corp.
A clinical genetics company, GeneDx runs DNA testing laboratories that use whole-genome and whole-exome sequencing to help doctors diagnose rare and inherited disorders, especially in children and critical-care patients. Two National Institutes of Health scientists founded the original GeneDx in 2000 in a small Maryland lab, naming it for "gene" plus "Dx," the medical shorthand for diagnosis. The firm merged with the genomics company Sema4 in 2022, and the combined business now carries the GeneDx name.
Granted 22.77M · Bought 1.88M
Granted 77.73M · Bought 11.44M · Sold 6.79M
Granted 80.6K · Bought 97.15M
Bought 430.9K
Bought 700.0K · Sold 500.0K
Bought 34.82M · Sold 1.01M
Granted 23.15M · Bought 14.29M · Sold 911.6K
Granted 6.50M · Sold 38.0K
Granted 323.6K · Sold 6.5K
Bought 2.50M
Bought 2.50M
Granted 386.9K · Sold 137.6K
Granted 247.2K · Bought 100.0K · Sold 98.3K
Granted 349.2K · Bought 114.7K · Sold 161.3K
Granted 1.33M · Bought 185.2K · Sold 611.5K
Granted 58.3K
Granted 54.5K · Bought 20.0K
Granted 57.7K · Sold 14.6K
Granted 440.9K · Sold 225.9K
Granted 12.8K
Granted 331.8K · Sold 109.1K
Granted 13.1K · Sold 5.7K
Granted 80.6K
Granted 30.9K · Sold 5.8K
Granted 17.1K
Granted 26.6K · Sold 8.9K
Granted 113.7K · Sold 54.1K
Granted 9.4K · Sold 9.4K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Corvex Management LP +1 co-filerDirector, 10% owner · 47 transactions | — | 11.12M | 22.77M | 1.88M | — |
| Meister Keith A.Director, 10% owner · 7 transactions | — | 8.82M | 77.73M | 11.44M | 6.79M |
| Casdin EliDirector, 10% owner · 8 transactions | — | 7.94M | 80.6K | 97.15M | — |
| Casdin Eli +4 co-filersDirector, 10% owner, Director · 9 transactions | — | 4.73Mas of Jun 2024 | — | 430.9K | — |
| Casdin Eli +3 co-filersDirector, 10% owner · 7 transactions | — | 4.12M | — | 700.0K | 500.0K |
| Icahn School Of Medicine At Mount Sinai +1 co-filer10% owner · 5 transactions | — | 2.72Mas of Nov 2024 | — | 34.82M | 1.01M |
| Opko Health, Inc.10% owner · 21 transactions | — | 2.65Mas of Aug 2024 | 23.15M | 14.29M | 911.6K |
| Ruch JoshuaDirector · 30 transactions | — | 542.9K | 6.50M | — | 38.0K |
| Clark Daniel EmmettSecretary and General Counsel · 14 transactions | — | 312.2Kas of Jul 2022 | 323.6K | — | 6.5K |
| Bto De GP - NQ L.L.C. +9 co-filers10% owner · 3 transactions | — | 262.3Kas of May 2022 | — | 2.50M | — |
| BTO Holdings Manager L.L.C. +9 co-filers10% owner · 3 transactions | — | 262.3Kas of May 2022 | — | 2.50M | — |
| Ro IsaacFormer CFO · 17 transactions | — | 244.0Kas of Aug 2022 | 386.9K | — | 137.6K |
| Schadt EricPresident & Chief R&D Officer, Director · 9 transactions | — | 243.4Kas of May 2022 | 247.2K | 100.0K | 98.3K |
| Ryan JasonDirector · 28 transactions | — | 118.8K | 349.2K | 114.7K | 161.3K |
| Stueland KatherineCHIEF EXECUTIVE OFFICER, Director · 160 transactions | — | 104.4K | 1.33M | 185.2K | 611.5K |
| Sherman Rachel E.Director · 2 transactions | — | 58.3Kas of May 2023 | 58.3K | — | — |
| Pfenniger Richard C JrDirector · 9 transactions | — | 45.1K | 54.5K | 20.0K | — |
| Assad ShawnFormer CAO · 13 transactions | — | 43.0Kas of Aug 2022 | 57.7K | — | 14.6K |
| Feeley KevinCHIEF FINANCIAL OFFICER · 176 transactions | — | 42.9K | 440.9K | — | 225.9K |
| Turner NatDirector · 1 transaction | +51.3% | 37.8Kas of Apr 2022 | 12.8K | — | — |
| Saad KareemCHIEF TRANSFORMATION OFFICER · 55 transactions | — | 29.5Kas of Mar 2024 | 331.8K | — | 109.1K |
| Miao RichardFormer Interim CFO · 4 transactions | — | 24.9Kas of Aug 2022 | 13.1K | — | 5.7K |
| Leproust Emily M.Director · 5 transactions | -0.6% | 24.9K | 80.6K | — | — |
| Coffin JamesPresident and COO · 4 transactions | — | 22.9Kas of Dec 2021 | 30.9K | — | 5.8K |
| Pellini Michael JDirector · 2 transactions | — | 17.1Kas of Oct 2022 | 17.1K | — | — |
| Prentice AnthonyChief Product Officer · 12 transactions | — | 12.1Kas of Jul 2022 | 26.6K | — | 8.9K |
| White Karen AnnChief People Officer · 35 transactions | — | 4.8Kas of Jul 2023 | 113.7K | — | 54.1K |
| Dechairo BryanChief Operating Officer · 13 transactions | — | 2.7K | 9.4K | — | 9.4K |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 5 years: +155.42M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.